Hexanoate-Cucurbit[7]uril: Highly Soluble with Controlled Release Ability.

Area of Science:

• Supramolecular Chemistry
• Materials Science
• Pharmaceutical Sciences

Background:

• Current drug delivery systems often increase in complexity with added functionality.
• A need exists for simpler, yet highly effective, drug delivery platforms.

Purpose of the Study:

• To synthesize and characterize a novel, multifunctional molecule for advanced drug delivery.
• To explore the integration of multiple functions into a single, simple molecular design.

Main Methods:

• Synthesis of hexanoate-cucurbit[7]uril (CB[7]C5 COONa).
• Evaluation of solubility and binding affinity.
• Assessment of pH-controlled release capabilities.

Main Results:

• CB[7]C5 COONa exhibits extremely high solubility (>600 mg/mL).
• The molecule demonstrates well-defined pH-controlled drug release.
• High binding affinity of the cucurbit[7]uril cavity is maintained.

Conclusions:

• The hexanoate modification integrates high solubility and pH-responsive release into cucurbit[7]uril.
• This strategy simplifies drug delivery systems while enhancing their capabilities.
• CB[7]C5 COONa offers a promising platform for controlling drug bioactivity.